Space Photos of the Week: This Binary Star Will Outshine You Twice

his dual-star system is the most luminous gamma-ray binary yet found, and the first found in another galaxy.

25 million light-years from Earth, the Sculptor constellation contains this spiral galaxy, including the bright blue bursts of young stars, red spots of hydrogen gas, and dark strands of cosmic dust shown.

The Ouarkziz crater in western Algeria was created when a meteor hit Earth 70 million years ago.

Pandora’s Cluster is a galaxy studied through the Frontier Fields observations, which searches for the earliest—and often, the dimmest—galaxies in the universe.

On September 30, Rosetta descended to the surface of Comet 67P/C-G, taking these images along the way.

Mawrth Vallis, one of the biggest valleys on Mars, was formed by flowing water, suggesting it was once habitable.

This photo of Saturn was taken from a degree above the icy rings, looking toward their sunlit side. On the bottom, the rings cast curving shadows across Saturn.